Key Features
- High Drain IMR Cell: Developed by Efest with a continuous discharge current of up to 40A, ideal for high-drain devices.
- 2600mAh Capacity: Minimum guaranteed capacity of 2500mAh delivers reliable power output.
- FlatTop Terminal: Safe for use in devices requiring flat-top batteries; no raised button top.
- Unprotected Design: No built-in BMS; requires compatible device protection circuitry.
- Thermally Stable Li-Ion Chemistry: Operates without memory effect and maintains consistent performance across cycles.
Technical Specifications
| Parameter | Detail |
|---|---|
| Model | Efest Purple IMR 18650 |
| Chemistry | Li-Ion IMR |
| Nominal Capacity | 2600mAh |
| Min. Capacity | 2500mAh |
| Nominal Voltage | 3.6V – 3.7V |
| Max Charging Voltage | 4.20V ±0.03 |
| Discharge Cutoff Voltage | 2.5V |
| Continuous Discharge Current | 25A |
| Pulse Discharge Current | 40A |
| Normal Charging Current | 1750mA |
| Charging Time | 3h |
| Charging Method | CC-CV |
| Operating Temperature (Charge) | 0 – 45°C |
| Operating Temperature (Discharge) | -20 – 60°C |
| Diameter | 18.20mm ± 0.2 |
| Height | 65.0mm ± 0.2 |
| Weight | 48g ± 1 |
| Terminal Type | FlatTop |
| Protection | None (Unprotected) |
| Manufacturer | Efestpower |
Package Contents
- 1 X Efest Purple IMR 18650 Battery












